Crown rump length?

deyrae

I went to my US measured 5weeks and 6 days , crl was 0.21cm and fetal pole detected , hr 101

She wants me to go back in a week to check viability and hr again

Not trying to stress . But does anybody know anything about this? I think that slow heart rate and measuring small is increased risk of MC... but is this measurement too small for that week period ? In your opinion